MILFORD - A 17-year-old from Canada is facing charges after police say he tried to blackmail a Milford girl into performing sex acts online.

Police say boy snapped topless photos of the 15-year-old girl during a web chat where she willing posed.

He then allegedly threatened to post the pictures on Facebook unless she agreed to perform sex acts online.

The girl told her parents about the incident and they contacted police. Montreal police have charged him possession of juvenile pornography, extortion and luring.